FALL RIVER — During a season of mostly contentious budgetary debates elsewhere in the city, the Diman Regional Vocational Technical High School Committee approved its fiscal 2015 budget comparatively quietly.

In March, the committee approved the district’s fiscal 2015 foundation budget of $22.5 million. The figure represents an increase of just over $631,000 from the prior year’s budget of $21.9 million.

State Chapter 70 education aid to the district also increased to just under $15.81 million, over fiscal 2014’s aid level of $14.79 million. Both the foundation budget and state aid numbers are determined by state education officials.

Each of the district’s four communities saw changes to their required local contributions. Fall River and Westport both saw their contributions increase by six figures. Fall River’s required contribution for 2015 will be $3.172 million, up $143,500 from the prior level of $3.029 million. In 2014, Westport paid $1.282 million for its students, and next year will pay $1.454 million, an increase of $171,689.

Those increases were based on enrollment data from last October, which showed that the number of students from Fall River and Westport had increased the most out of the four communities. The number of Fall River students went up by 26. Westport’s number increased by 12.

The number of students from Swansea went up by five, while six fewer students from Somerset were enrolled at Diman. Somerset’s required local contribution was reduced by $76,618. Swansea saw its contribution increase marginally, by $7,032.

Superintendent-Director Marta Montleon said the budget funds the district at 100 percent of net school spending, the minimum amount required by Massachusetts.

“We operate Diman within the parameters of the state,” Montleon said.

The per-pupil expenditure did not increase by much, however — only $44, to $15,351.

Montleon said the budget should maintain current staffing levels in the district.

“We are not anticipating any changes in staffing,” she said, adding that school officials “may need to reallocate resources to address the increased enrollment of special-needs students.”

Diman School Committee Chairman Paul Jennings of Westport said the increased number of students from Westport came after a revision to Diman’s admissions process, which became less based on quotas from each town, and more based on which students were determined to be the top recruits.

In all, 112 students from Westport were enrolled last year; 1,096 students from Fall River; 134 students from Somerset; and 127 students from Swansea.

During the admissions process, according to Jennings, students were scored based on their academic grades, school attendance records and recommendations from their middle school guidance counselors.

He said next year Westport’s student ratio “should be roughly about the same.”